The BARkeep integrates Portland Design Works' exclusive Tap Handle technology that carefully controls the flow of CO2. Compatible with both Presta and Schrader valves, the BARkeep also integrates a pressure gauge to ensure a perfect pour to fix your flat. A beginner-friendly CO2 inflator! - CO2 inflator with integrated pressure gauge - PDW exclusive Tap Handle technology controls CO2 flow while protecting your hand from frosty cartridges - Weight: 94g (3.3oz) - Length with Tap Handle: 175mm (6.9") - Length without Tap Handle: 87mm (3.5")